sveltekit: Module '"$app/stores"' has no exported member 'session'

I am trying to migrate a sveltekit app from older versions to the latest. session has been removed from $app/stores.

I have not been able to find references to new session in the current documentation.

I use this reference in +layout.svelte

    <script lang="ts">
        import { session } from '$app/stores';
    </script>

and also call GetSession from hooks.ts:

    import type { GetSession, Handle } from '@sveltejs/kit';

What is the new way of referencing them?

Ben.